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SDL_cocoamouse.m
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2010 Sam Lantinga
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This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
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#include "SDL_events.h"
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#include "SDL_cocoavideo.h"
#include "../../events/SDL_mouse_c.h"
void
Cocoa_InitMouse(_THIS)
{
}
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static int
ConvertMouseButtonToSDL(int button)
{
switch (button)
{
case 0:
return(SDL_BUTTON_LEFT); /* 1 */
case 1:
return(SDL_BUTTON_RIGHT); /* 3 */
case 2:
return(SDL_BUTTON_MIDDLE); /* 2 */
}
return button;
}
void
Cocoa_HandleMouseEvent(_THIS, NSEvent *event)
{
int i;
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NSPoint point = { 0, 0 };
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SDL_Window *window;
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SDL_Window *focus = SDL_GetMouseFocus();
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/* See if there are any fullscreen windows that might handle this event */
window = NULL;
for (i = 0; i < _this->num_displays; ++i) {
SDL_VideoDisplay *display = &_this->displays[i];
SDL_Window *candidate = display->fullscreen_window;
if (candidate) {
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SDL_Rect bounds;
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Cocoa_GetDisplayBounds(_this, display, &bounds);
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point = [NSEvent mouseLocation];
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point.x = point.x - bounds.x;
point.y = CGDisplayPixelsHigh(kCGDirectMainDisplay) - point.y - bounds.y;
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if ((point.x >= 0 && point.x < candidate->w) &&
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(point.y >= 0 && point.y < candidate->h)) {
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/* This is it! */
window = candidate;
break;
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} else if (candidate == focus) {
SDL_SetMouseFocus(NULL);
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}
}
}
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}
switch ([event type]) {
case NSLeftMouseDown:
case NSOtherMouseDown:
case NSRightMouseDown:
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SDL_SendMouseButton(window, SDL_PRESSED, ConvertMouseButtonToSDL([event buttonNumber]));
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break;
case NSLeftMouseUp:
case NSOtherMouseUp:
case NSRightMouseUp:
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SDL_SendMouseButton(window, SDL_RELEASED, ConvertMouseButtonToSDL([event buttonNumber]));
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case NSScrollWheel:
Cocoa_HandleMouseWheel(window, event);
break;
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case NSLeftMouseDragged:
case NSRightMouseDragged:
case NSOtherMouseDragged: /* usually middle mouse dragged */
case NSMouseMoved:
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SDL_SendMouseMotion(window, 0, (int)point.x, (int)point.y);
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break;
default: /* just to avoid compiler warnings */
break;
}
}
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void
Cocoa_QuitMouse(_THIS)
{
}
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void
Cocoa_HandleMouseWheel(SDL_Window *window, NSEvent *event)
{
float x = [event deltaX];
float y = [event deltaY];
if (x > 0) {
x += 0.9f;
} else if (x < 0) {
x -= 0.9f;
}
if (y > 0) {
y += 0.9f;
} else if (y < 0) {
y -= 0.9f;
}
SDL_SendMouseWheel(window, (int)x, (int)y);
}
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/* vi: set ts=4 sw=4 expandtab: */